NCERT Exemplar Class 10 Science Chapter 7 – Control and Coordination
The NCERT Exemplar Class 10 Science Solutions for Chapter 7 – Control and Coordination focus on how living organisms regulate and coordinate their body functions. This chapter helps students understand the role of the nervous system and hormones in maintaining balance within the body and responding to changes in the environment. With the help of NCERT Solutions for Class 10 Science, learners gain a clear perspective on these essential biological processes. The chapter begins with the nervous system in humans, explaining its structure and function. Students learn about the role of neurons in transmitting impulses, the difference between sensory and motor neurons, and how synapses act as junctions for message transfer. Reflex actions and their importance in quick responses are highlighted with examples like touching a hot object. The central nervous system, consisting of the brain and spinal cord, is described in detail, including the functions of different brain parts such as the cerebrum, cerebellum, and medulla.
The chapter then moves to coordination in plants, which lack a nervous system but still respond to stimuli. Students explore tropic movements like phototropism, geotropism, hydrotropism, and chemotropism, along with nastic movements such as the folding of leaves in the touch-me-not plant. The role of plant hormones like auxins, gibberellins, cytokinins, and abscisic acid is also explained, showing how they regulate growth and responses. In animals, hormonal coordination is discussed in detail. The endocrine system and major glands such as the pituitary, thyroid, pancreas, and adrenal glands are introduced. Students learn how hormones control growth, metabolism, reproduction, and stress responses. The importance of insulin in regulating blood sugar and the role of adrenaline in emergency situations are emphasized with practical relevance. By solving NCERT Exemplar Class 10 Science exercises, students practice application-based and higher-order questions that enhance their analytical skills. The NCERT Solutions for Class 10 Science Chapter 7 ensure that learners can answer both theoretical and diagram-based questions effectively. Overall, Chapter 7 bridges the gap between biology and everyday life by showing how organisms coordinate their actions to survive. This chapter builds a strong foundation for advanced biology topics, helping students prepare thoroughly for board exams and future studies.